FNG checking in.

I just bought a Lilja-Nordic barrel and I am sticking it in a Vltor MUR.

Here is the result:

Attachment 10763

Notice the left ramp is slightly off, this creates a small, sharp burr on the outer edge that looks MUCH worse when viewed from the tail of the upper - it's hard to get a good pic because of the angle.

Is this a big deal? Please advise.